Investigation of Anomalous Magnetic Transition in Pr0.5Sr0.5CoO3

被引：6

作者：

Li, Feng ^{[1
]}

Wu, Na ^{[1
]}

Fang, Jun ^{[1
]}

机构：

[1] Chinese Acad Sci, High Field Magnet Lab, Hefei 230031, Peoples R China

来源：

JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM | 2013年 / 26卷 / 02期

关键词：

Pr0.5Sr0.5CoO3; Anomalous magnetic transition; Crystal structure changes; SPIN-STATE TRANSITION; RARE-EARTH; LN(0.5)SR(0.5)COO(3) LN; TRANSPORT-PROPERTIES; BEHAVIOR; GLASS; PR; ND;

D O I：

10.1007/s10948-012-1765-0

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Polycrystalline perovskite cobalt oxides Pr0.5Sr0.5CoO3 were prepared by the sol-gel method. We mainly study the anomalous magnetic transition of Pr0.5Sr0.5CoO3. We report the investigations of polycrystalline samples of the metallic ferromagnetic material Pr0.5Sr0.5CoO3 through measurements of X-ray diffraction, the magnetization, and the resistivity. We found an unusual anomaly around T (A)=120 K, much below the ferromagnetic transition (T (C)=228 K). Further using the variable temperature X-ray diffraction and electron spin resonance (ESR) measurements, we found that as the temperature goes down, the crystal structure changes obviously at T (A)=120 K. We show that this actually results in anomalous magnetic transition.

引用

页码：463 / 467

页数：5

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